Whilst installing grid infrastructure I hit and running the root.sh script I got a libcap.so.1 not found. It is correct, I have v2 of libcap not v1. I've read linking libcap.so.1 to libcap.so.2 or copying it works and I can do this but can I just rerun the root.sh script again or do I have to back out what it did in some way first? Perhaps there is another way to get libcap.so.1 also?